Small cleanups here and there.

app/src/components/MeetingDrawer/FileSharing/File.js

@@ -67,7 +67,7 @@ class File extends React.PureComponent
 				<img alt='Avatar' className={classes.avatar} src={picture} />
 
 				<div className={classes.fileContent}>
-					{ file.files ?
+					{ file.files &&
 						<Fragment>
 							<Typography className={classes.text}>
 								File finished downloading
@@ -92,13 +92,12 @@ class File extends React.PureComponent
 								</div>
 							))}
 						</Fragment>
-						:null
 					}
 					<Typography className={classes.text}>
 						{ `${displayName} shared a file` }
 					</Typography>
 
-					{ !file.active && !file.files ?
+					{ (!file.active && !file.files) &&
 						<div className={classes.fileInfo}>
 							<Typography className={classes.text}>
 								{ magnet.decode(magnetUri).dn }
@@ -121,20 +120,17 @@ class File extends React.PureComponent
 								</Typography>
 							}
 						</div>
-						:null
 					}
 
-					{ file.timeout ?
+					{ file.timeout &&
 						<Typography className={classes.text}>
 							If this process takes a long time, there might not be anyone seeding
 							this torrent. Try asking someone to reupload the file that you want.
 						</Typography>
-						:null
 					}
 
-					{ file.active ?
+					{ file.active &&
 						<progress value={file.progress} />
-						:null
 					}
 				</div>
 			</div>

app/src/components/MeetingDrawer/ParticipantList/ListMe.js

@@ -91,9 +91,8 @@ const ListMe = (props) =>
 				</div>
 
 				<div className={classes.indicators}>
-					{ me.raisedHand ?
+					{ me.raisedHand &&
 						<div className={classnames(classes.icon, 'raise-hand')} />
-						:null
 					}
 				</div>
 			</div>

app/src/components/MeetingDrawer/ParticipantList/ListPeer.js

@@ -159,7 +159,7 @@ const ListPeer = (props) =>
 				{peer.displayName}
 			</div>
 			<div className={classes.indicators}>
-				{ peer.raiseHandState ?
+				{ peer.raiseHandState &&
 					<div className={
 						classnames(
 							classes.icon, 'raise-hand', {
@@ -169,12 +169,11 @@ const ListPeer = (props) =>
 						)
 					}
 					/>
-					:null
 				}
 			</div>
 			{children}
 			<div className={classes.controls}>
-				{ screenConsumer ?
+				{ screenConsumer &&
 					<div
 						className={classnames(classes.button, 'screen', {
 							on       : screenVisible,
@@ -195,7 +194,6 @@ const ListPeer = (props) =>
 							<ScreenOffIcon />
 						}
 					</div>
-					:null
 				}
 				<div
 					className={classnames(classes.button, 'mic', {